[3a´.] [Pollicipes mitella], nat. size, internal views of
![[3a´.]](#475865927904411783_p07f3a.png.id-2371463798342455801.wrap-0.html.html){kind=link}
(a.) Scutum, and of
(b.) Tergum, showing articular fold.
[3b´.] [Pollicipes mitella], Internal view of other valves, in a small specimen, showing the manner in which the valves of the lower whorl overlap each other.
![[3b´.]](#475865927904411783_p07f3b.png.id-4550681839374432444.wrap-0.html.html){kind=link}
(a.) Upper latera.
(b.) Carina,
(c.) Sub-carina, both viewed a little obliquely.
(d.) Rostrum,
(e.) Sub-rostrum, both viewed a little obliquely.
[4.] [Pollicipes spinosus], one and a half nat. size.
![[4.]](#475865927904411783_p07f4.png.id-6465748101037514723.wrap-0.html.html){kind=link}